Overall Green Tropical Cyclone alert for OLGA-24 in Australia on 05 Apr 2024 18:00 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

Overall Green alert Tropical Cyclone for OLGA-24

in Australia

Meteorological source:

GDACS JTWC

Impact Single TC

Impact based on all weather systems in the area

Impact

Tropical Cyclone OLGA-24 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GDACS
Exposed countries	Australia
Exposed population	No people in Category 1 or higher
Maximum wind speed	222 km/h
Maximum storm surge	0.6 m (09 Apr 18:00 UTC)
Vulnerability	Low (Australia)

GDACS Score

GDACS alert score for Tropical Cyclones is 0.5 (GREEN Alert), 1.5 (ORANGE Alert), 2.5 (RED Alert)
For more info on GDACS alert score click here.

	Wind	Storm surge	Rainfall	GDACS score
Current	120 km/h	0.6 m	n.a.	0.5
Overall	222 km/h	0.6 m	n.a.	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

TOP

Wind

120 km/h Current Max.

Up to no people in Category 1 strength or higher (see SSHS)

Impact Timeline

Alert	N°	Date (UTC)	Max Winds (km/h)	Population in Tropical Storm or higher	Population in Cat 1. or higher	Countries
	1	05 Apr 2024 18:00	120	No people	No people

Bulletin Timeline

N°	Date (UTC)	Category (SSHS)	Max winds (km/h)	Population in Cat.1 or higher	Population in Tropical Storm or higher	Location (lat, lon)
1	05 Apr 2024 18:00	Tropical storm	65	no people	no people	-13.3, 120.2
1	06 Apr 2024 06:00	Tropical storm	93	no people	no people	-13.7, 120.1
1	06 Apr 2024 18:00	Tropical storm	111	no people	no people	-14.3, 120
1	07 Apr 2024 06:00	Category 1	120	no people	no people	-14.9, 119.7
1	07 Apr 2024 18:00	Tropical storm	111	no people	no people	-15.7, 119.2
1	08 Apr 2024 18:00	Tropical storm	93	no people	no people	-16.6, 117.6
1	09 Apr 2024 18:00	Tropical storm	74	no people	no people	-17.9, 115
1	10 Apr 2024 18:00	Tropical storm	65	no people	no people	-19.5, 111.7

Actual track of the current bulletin

The alert for forecast greater than 3 days is limited to Orange level.

Download:

Exposed population - AoIs

Exposed population in the potential affected countries, provinces and populated places

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

TOP

Rainfall

Rainfall accumulation of the past 24h, as detected by the Global Precipitation Measurement mission of NASA. For more information, see https://www.nasa.gov/mission_pages/GPM/main/index.html.

...

TOP

StormSurge

0.6 m

The maximum Storm surge height is 0.6m in Wickham, Australia. This height is estimated for 09 Apr 2024 18:00 UTC .

The JRC has developed an experimental global storm surge model. The calculations are published about 20 minutes after a new advisory is detected by GDACS. The calculations identify the populated places affected by storm surge up to three days in advance, using the forecasted track. When forecasts change, the associated storm surge changes too and alert levels may go up or down. All links, data, statistics and maps refer to the latest available calculation. If the calculation for the last advisory is not completed, the latest available calculation is shown.

Locations affected by Storm surge (67 locations). Calculation based on advisory number 1 of 05 Apr 2024 18:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	09 Apr 2024 18:00	Wickham	Australia	0.6
	09 Apr 2024 18:00	Point Samson	Australia	0.6
	09 Apr 2024 18:00	Cossack	Australia	0.6
	09 Apr 2024 18:00	Ah Chong I	Australia	0.5
	09 Apr 2024 18:00	East Lewis I	Australia	0.4
	09 Apr 2024 18:00	Condon	Australia	0.4
	08 Apr 2024 00:00	Derby	Australia	0.3
	05 Apr 2024 23:00	Pagatan	Indonesia	0.3
	05 Apr 2024 20:00	Kualalupak	Indonesia	0.3
	05 Apr 2024 20:00	Aluhaluh	Indonesia	0.3
	05 Apr 2024 20:00	Tambakkarangan	Indonesia	0.3
	05 Apr 2024 20:00	Tabanio	Indonesia	0.3
	05 Apr 2024 20:00	Bawahalajung	Indonesia	0.3
	09 Apr 2024 18:00	Mardie	Australia	0.3
	05 Apr 2024 21:00	Pagetan	Indonesia	0.3
	08 Apr 2024 00:00	Pender	Australia	0.3
	06 Apr 2024 04:00	Larrakeyah	Australia	0.3
	06 Apr 2024 04:00	Nightcliff	Australia	0.3
	06 Apr 2024 04:00	Fannie Bay	Australia	0.3
	06 Apr 2024 04:00	Parap	Australia	0.3
	06 Apr 2024 04:00	Darwin	Australia	0.3
	06 Apr 2024 04:00	Ludmilla	Australia	0.3
	06 Apr 2024 04:00	Bagot	Australia	0.3
	05 Apr 2024 22:00	Bapuju	Indonesia	0.3
	05 Apr 2024 22:00	Bahaur	Indonesia	0.3
	05 Apr 2024 21:00	Batakam	Indonesia	0.3
	05 Apr 2024 20:00	Semisir	Indonesia	0.3
	06 Apr 2024 02:00	Kollan I	Australia	0.3
	05 Apr 2024 23:00	Setiroek	Indonesia	0.3
	06 Apr 2024 04:00	Leanyer	Australia	0.2
	05 Apr 2024 22:00	Kandangan	Indonesia	0.2
	05 Apr 2024 23:00	Mutua	Indonesia	0.2
	05 Apr 2024 23:00	Tandjoengselaka	Indonesia	0.2
	09 Apr 2024 18:00	Broome	Australia	0.2
	09 Apr 2024 18:00	Thangoo	Australia	0.2
	05 Apr 2024 20:00	Pagatan	Indonesia	0.2
	05 Apr 2024 20:00	Salinau	Indonesia	0.2
	05 Apr 2024 20:00	Semaras	Indonesia	0.2
	05 Apr 2024 20:00	Okaoka	Indonesia	0.2
	05 Apr 2024 20:00	Teloekkapalpetjah	Indonesia	0.2
	05 Apr 2024 20:00	Tungkaranasam	Indonesia	0.2
	09 Apr 2024 18:00	Kennedys Cottage	Australia	0.2
	09 Apr 2024 18:00	Waterbank	Australia	0.2
	05 Apr 2024 20:00	Tandjungkiras	Indonesia	0.2
	06 Apr 2024 01:00	Tapianbalai	Indonesia	0.2
	05 Apr 2024 20:00	Makasar	Indonesia	0.2
	05 Apr 2024 20:00	Manda	Indonesia	0.2
	05 Apr 2024 20:00	Tamalaba	Indonesia	0.1
	05 Apr 2024 20:00	Tjadia	Indonesia	0.1
	05 Apr 2024 20:00	Kanaoengan	Indonesia	0.1
	05 Apr 2024 23:00	Segintong	Indonesia	0.1
	06 Apr 2024 07:00	Soengaibali	Indonesia	0.1
	05 Apr 2024 20:00	Tandjungklumpang	Indonesia	0.1
	05 Apr 2024 20:00	Bontobonto	Indonesia	0.1
	06 Apr 2024 01:00	Boenati	Indonesia	0.1
	05 Apr 2024 20:00	Sanrabone	Indonesia	0.1
	05 Apr 2024 20:00	Karamak	Indonesia	0.1
	05 Apr 2024 21:00	Pangkal Dudat	Indonesia	0.1
	05 Apr 2024 21:00	Membalong	Indonesia	0.1
	06 Apr 2024 07:00	Sekapoeng	Indonesia	0.1
	09 Apr 2024 18:00	Exmouth	Australia	0.1
	05 Apr 2024 20:00	Gailesong	Indonesia	0.1
	05 Apr 2024 20:00	Bisali	Indonesia	0.1
	05 Apr 2024 20:00	Tiempae	Indonesia	0.1
	05 Apr 2024 20:00	Mandalle	Indonesia	0.1
	05 Apr 2024 22:00	Djepuh	Indonesia	0.1
	05 Apr 2024 20:00	Padaelo	Indonesia	0.1

Disclaimer
While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.
The designations employed and the presentation of material on the map do not imply the expression of any opinion whatsoever on the part of the European Union concerning the legal status of any country, territory or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.